php防攻击代码升级版

$timepass=$timetem+$allowTime-$time;
die("Warning:"."<br>"."Pls don''t refresh too frequently, and wait for ".$timepass." seconds to continue, IF not your IP address will be forbided automatic by Mydalle.com Anti-refresh mechanism!<br>(Mydalle.com Anti-refresh mechanism is to enable users to have a good shipping services, but there maybe some inevitable network problems in your IP address, so that you can mail to us to solve.)");
}
}
}
}
if($yesno) $str.=$checkip.$checkuri.$time."1\r\n";
file_put_contents($file,$str);
?>